Automatic analyzer

Abstract

In the case of adopting a configuration in which reagent bottles are radially disposed on a reagent disk and a reagent dispensing mechanism is rotated to access the reagent bottles, one reagent bottle includes a plurality of suction ports in which suction positions are different from each other, resulting in prolonging a step of dispensing a reagent. The invention is directed to an automatic analyzer including: a reagent disk that accommodates a plurality of reagent bottles including a plurality of suction ports and conveys the reagent bottles to a desired position by rotating in a circumferential direction around a central axis; and a reagent dispensing mechanism that rotates around a rotational axis and sucks a reagent of the reagent bottle placed at a predetermined position on the reagent disk. The reagent bottle is accommodated in the reagent disk such that the central axis of the reagent bottle and a diameter of the reagent disk form a predetermined inclination.

The invention claimed is: 
     
       1. An automatic analyzer comprising:
 a reagent disk that accommodates a plurality of reagent bottles including a plurality of suction ports and conveys the reagent bottles to a desired position by rotating in a circumferential direction around a central axis; and 
 a reagent dispensing mechanism that rotates around a rotational axis and sucks a reagent of the reagent bottle placed at a predetermined position on the reagent disk, wherein 
 the reagent bottle is accommodated in the reagent disk such that the central axis of the reagent bottle and a diameter of the reagent disk form a predetermined inclination θ (θ>0), wherein 
 a rotational track of the reagent dispensing mechanism 
 passes over a plurality of suction ports of one reagent bottle placed at the predetermined position on the reagent disk. 
 
     
     
       2. The automatic analyzer according to  claim 1 , further comprising:
 a cover that covers the reagent disk, wherein 
 the reagent dispensing mechanism accesses one of the plurality of suction ports of the one reagent bottle from an opening provided in the cover. 
 
     
     
       3. The automatic analyzer according to  claim 2 , further comprising:
 a reagent container lid opening and closing mechanism that is provided at a position of the opening to open and close a lid provided at the suction port of the reagent bottle. 
 
     
     
       4. The automatic analyzer according to  claim 2 , further comprising:
 a magnetic particle stirring device that rotates around a rotational axis and stirs a magnetic particle solution of the reagent bottle, wherein 
 the magnetic particle stirring device accesses a predetermined suction port of the one reagent bottle from the opening provided in the cover. 
 
     
     
       5. The automatic analyzer according to  claim 4 , wherein
 the one reagent bottle includes a first container for containing the magnetic particle solution and a second container for containing the reagent, and 
 while the magnetic particle stirring device accesses the first container of the one reagent bottle and stirs the magnetic particle solution, the reagent dispensing mechanism accesses the second container of the one reagent bottle and dispenses the reagent. 
 
     
     
       6. The automatic analyzer according to  claim 1 , wherein
 the reagent bottle includes a first suction port, a 
 second suction port, and a third suction port disposed at an equal distance in order from the inside in a state of being disposed on the reagent disk, and 
 the inclination θ is an angle between the central axis of the reagent bottle passing through a center of the second suction port and the diameter of the reagent disk passing through the center of the second suction port, and satisfies 20≤θ≤30.